The GFW-ID-CT31TOWER is a 31”/787mm tower for frameworks ID series creator tree system. Compatible with all vertically mounted id series creator tree accessory arms & 41"/1041mm crossbar. Securely clamps to desks, tables & similar-sized surfaces 2.15”/55mm – 3.3”/84mm max in thickness. Mic boom arm mounting point at top (0.6”/14mm id) with removable end cap & position lock knob. Hardware included.